{
  "id": "CVE-2023-44270",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-09-29T22:15:11.867",
  "lastModified": "2023-10-10T17:19:55.690",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in PostCSS before 8.4.31. The vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being included in a comment."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en PostCSS antes de la versi\u00f3n 8.4.31. La vulnerabilidad afecta a los linters que utilizan PostCSS para analizar CSS externos que no son de confianza. Un atacante puede preparar CSS de tal manera que contenga partes analizadas por PostCSS como un comentario CSS. Despu\u00e9s del procesamiento por PostCSS, se incluir\u00e1 en la salida de PostCSS en los nodos CSS (reglas, propiedades) a pesar de estar incluido en un comentario."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:postcss:postcss:*:*:*:*:*:node.js:*:*",
              "versionEndExcluding": "8.4.31",
              "matchCriteriaId": "FB38A6C8-B41F-41C9-9093-E46BAC3B54CB"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/github/advisory-database/issues/2820",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://github.com/postcss/postcss/blob/main/lib/tokenize.js#L25",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://github.com/postcss/postcss/commit/58cc860b4c1707510c9cd1bc1fa30b423a9ad6c5",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/postcss/postcss/releases/tag/8.4.31",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Release Notes"
      ]
    }
  ]
}